Home
User interface
Top bar
Hull Unit
Hull Unit is located on the left side of the top bar. Select it to open the Hull Unit Control dialog box.

Purpose
Document information
About this manual
The purpose of this publication is to provide the descriptions and procedures required to allow for efficient use of the ST90 system. The manual does not contain detailed information about functions, dialog boxes and operating parameters.
Simrad ST90
Operating procedures
User interface
- User interface familiarization
  By default, the display presentation covers the entire screen. The display presentation provided by the ST90 system consists of specific visual elements that work together. The visual elements provide you with the echo information you need, they help you to control the functionality needed to understand this information, and finally, they allow you to control the operational parameters.
- Top bar
  - Top bar overview
    The top bar is located at the top of the display presentation and stretches from the far left to the far right. The top bar gives you fast access to key functionality and navigational information. It provides buttons for hiding and showing the menu, making screen captures, opening the Messages dialog box, and opening context-sensitive help. And more importantly, from the top bar you can see when data recording is active.
  - Logo and product name
    The brand logo and product name are shown on the left side of the top bar.
  - Menu
    Menu is located on the left side of the top bar. This is an "on/off" function.
  - Screen Recording
    The Screen Recording function allows you to record and save the echo presentation as a video file. Select Screen Recording on the top bar to start and stop the recording.
  - Screen Capture
    While using the ST90 system you may wish to make a screen capture to save an instantaneous copy of the current presentation.
  - Record
    A useful function of the ST90 system is it ability to record echo data. Use the raw data recording functionality provided by the ST90 system to save echo data using the *.raw format. You can save the data to the hard disk, or onto an external storage device. The data files can be played back on the ST90 system. The data files can later be deleted, copied or moved to another storage device.
  - Hull Unit
    Hull Unit is located on the left side of the top bar. Select it to open the Hull Unit Control dialog box.
  - Information panes overview
    The ST90 system offers several information panes to provide additional and detailed data from the presentations. The information panes are opened and closed from the top bar. The information panes are only available when an Inspection view is "active".
  - Navigational information
    The navigational information is located in the middle of the top bar. To choose which information to be displayed on the top bar, use the Top Bar functions in the Display Options dialog box. The Display Options dialog box is located on the Display menu.
  - Messages
    Messages is located on the right side of the top bar.
  - Help
    Help is located on the right side of the top bar.
  - Operating system functions
    The operating system functions are located on the right side of the top bar. Minimize, Maximize/Normalize and Power Off are provided.
- Replay bar description
  During replay, the dedicated replay bar is shown immediately under the top bar. The replay bar allows you to retrieve saved files, and to control the playback.
- Sonar views
- Using markers in the ST90 user interface
  Under normal use, the ST90 system presents several different echoes simultaneously. Some of these are clearly more interesting than others. It can be a challenging task to tell these echoes apart. It can also be hard to keep track of the different echoes as both echoes and your own vessel move. To ease the identification of these echoes you can use markers.
- Using target and position tracking
  The phrase target is used to identify an echo in the display presentation that you wish to act upon.The echo may be from a material item, a shallow, reef or rock, or from fish, fish schools or mammals.In most cases, the target will move and continuously change its position relative to your own vessel.You must decide which echoes that shall be classified as targets, and whether you shall start manual or automatic target tracking. A position track permits the ST90 system to automatically control the tilt and bearing based on the movements of your vessel.
- Informationpanes
- Bottom bar
  The bottom bar is located at the bottom of the display presentation and stretches from the left side to the right side. The tabs on the bottom bar allow you to choose presentation mode.
Menu system
Functions and dialog boxes
The functions and dialog boxes provided in the ST90 user interface are not described in this publication.
Technical specifications
The technical specifications summarize the main functional and operational characteristics of the ST90 system. They also provide information related to power requirements, physical properties and environmental conditions.
Datagram formats
The ST90 system can send and receive information to and from several different peripherals. All transmissions take place as datagrams with data sentences. Each datagram has a defined format and length.
Copyright

Hull Unit

Hull Unit is located on the left side of the top bar. Select it to open the Hull Unit Control dialog box.

Description

The Hull Unit Control dialog box allows you to lower and hoist the transducer. The dialog box also provides status information about the transducer position. You can monitor the current position of the transducer and make changes to the position defaults. The current position of the transducer is shown on the top bar. The colour is used to provide status information.

Red colour: The hull unit is disconnected.
Green colour: The hull unit is connected and available for use.
Grey colour: The hull unit is connected and in use.

A warning message is displayed if a malfunction occurs while you are lowering or hoisting the transducer. Select Acknowledge to accept the message. Investigate the cause of the error message before you proceed.

Tip:

Retracting the transducer to a middle position may be useful if you use the ST90 system simultaneously with other sonars. If you have the large hull unit you can define two middle positions.

Related functionality

Hull Unit Control dialog box

Select Hull Unit on the top bar to open the Hull Unit Control dialog box.

The Hull Unit Control dialog box allows you to lower and hoist the transducer. The dialog box also provides status information about the transducer position. You can monitor the current position of the transducer and make changes to the position defaults.

Hull Unit Configuration page (Installation dialog box)

The ST90 system can be provided with different hull units. The main difference between these hull units is the length of the transducer shaft, and thus also the physical height of the entire hull unit assembly. The same transducer is used on all hull unit types. Select which type of hull unit that has been installed. You only need to do this once.

Note:

The choice you make is vital for all operation. An accidental change to the setting may cause damage to your ST90 system.

This page is located in the Installation dialog box. To open the page, select Installation on the Setup menu.

Hull Unit page (Diagnostics dialog box)

Use the Hull Unit page to read the software and firmware versions from the Hull Unit Control board.

This page is located in the Diagnostics dialog box. Open the Diagnostics dialog box from the Setup menu.